>Why you need _SERIES_ resistor in MOSFET ??? You may shortly connect PIC's >output to gate. This series R is going between the Gate and the PIC. If you turn it on (and off) without the resistor, the rise time is very short and generates many harmonics which can keep your device from FCC approval. The PIC will provide 20mA of current if required, so it will turn on the device VERY quickly. Andy ================================================================== Andy Kunz - Montana Design Go fast, turn right, and keep the wet side down! ==================================================================